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Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 30 hours after estrus begins
Blood
penis proper
dartos muscle
cow ovulation
2. 147 days
Lutinizing Hormone in females
feeding a high producing dairy cow
ewe gestation
sperm cell
3. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
accessory sex glands
Mares
penis and prepuce observation (BSE)
burdizzo
4. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING
ewe estrus
sow gestation
Dairy calves are removed from cow at birth to...
reason for seasonal breeding periods
5. FEED
elastrator
kidney stones also called ________ ___________ can develop in the sigmoid flexure
#1 cost in production
dry-off time in dairy cattle
6. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat
ewe ovulation
ewe estrus
functions of progestrone
normal presentation of the fetus
7. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.
Parturition
why does the cow need fat deposits during pregnancy?
cryptorchid
mastitis
8. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market
reasons for castration
mare's estrous cycle
vagina
scrotum
9. Duct through penis that carries sperm and urine
urethra
things to check for in a breeding soundness exam (BSE)
seminiferous tubules
monorchid
10. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.
pelvis
sigmoid flexure
#1 cost in production
1. more cost effective - 2. powdered milk is in excess production
11. Superior genes are _______ to multiply
reasons for castration
sigmoid flexure
dry-off time in dairy cattle
Hard
12. Sperm is produced here
ewe gestation
sow estrus
effects of estrogen
seminiferous tubules
13. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.
dry-off time in dairy cattle
Dairy Cattle milking schedule
effects of estrogen
dartos muscle
14. Duct through penis that carries sperm and urine
oviducts
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
vagina
urethra
15. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm
Follical Stimulating in males
Dairy Cattle Lactation (standard)
seasonally polyestrous
oviducts
16. Scar tissue plugs up chambers of udder
mastitis
Mares
prostaglandin
pelvis
17. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
burdizzo
retractor muscles
Culls bulls earlier (2 reasons)
dairy cattle pregnancy check
18. Larger the cow - more milk is produced; smaller the cow - less milk is produced
cervix
femininity of a heifer
seasonally polyestrous
Size of cow in relation to the amount of milk produced
19. Larger the cow - more milk is produced; smaller the cow - less milk is produced
Size of cow in relation to the amount of milk produced
Dairy Cattle Lactation (standard)
libido test (BSE)
mare estrus cycle
20. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract
4 major reasons for culling dairy cows
spermatogenesis
eminal vesicles
penis proper
21. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge
castration
van deferens
behavioral signs of estrus
scrotal circumference (BSE)
22. 336 days
dry matter and water
colostrum
mare gestation
Blood
23. Allows extension of penis without fibro-elastic penis
sigmoid flexure
sperm cell
mastitis
dry-off time in dairy cattle
24. ~305 days (altough often longer due to breeding difficulties)
1. more cost effective - 2. powdered milk is in excess production
rectal palpation (BSE)
Dairy Cattle Lactation (standard)
Mares
25. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells
penis and prepuce observation (BSE)
organs used in spermatogenesis
mare estrus
leydid or interstitial cells
26. Failure to have one testis (gonad) to descend
leydid or interstitial cells
monorchid
ewe estrus
epididymis: definition - 3 parts - 4 functions
27. When are steers and heifers weaned from bottle feeding?
normal presentation of the fetus
ewe estrus cycle
6-8 weeks
sow estrus
28. 19-23 (21) days
monestrous
cow estrus cycle
dry-off time in dairy cattle
6-8 weeks
29. Can survive ~7 days in cow. vast majority <48 hours
mare's estrous cycle
sperm cell
Sperm survival specs
Follical Stimulating in females
30. Contains and regulates the temp of the testes for sperm production
burdizzo
effects of BST
scrotum
Dairy Cattle milking schedule
31. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.
van deferens
Grading choice
sertoli cells
Reasons for gestation length being affected
32. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
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33. Urinary calculi.
kidney stones also called ________ ___________ can develop in the sigmoid flexure
growth lost from castration methods (knife & band)
femininity of a heifer
Sperm growth rate
34. Knife-loose ~1wk of growth. band-loose ~2wks of growth.
semen evaluation (BSE)
growth lost from castration methods (knife & band)
castration
seasonally polyestrous
35. (male) pushes the testes upward toward the body for warmth or protection
dartos muscle
Parturition
Dairy Cattle milking schedule
scrotum
36. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm
sow estrus cycle
sow estrus
sow ovulation
Follical Stimulating in males
37. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
Lutinizing Hormone in males
cow estrus cycle
retractor muscles
mare estrus cycle
38. FEED
why does the cow need fat deposits during pregnancy?
Holstein Cow
cow estrus
#1 cost in production
39. Way to know everything is alright with the breeding male
Brown Swiss Cow
purpose of Breeding Soundness Exam (BSE) for males
estrus
Dairy Cattle milking schedule
40. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm
Bull's fibro-elastic penis
hormones
hypothalamus and pituitary gland
scrotal circumference (BSE)
41. Birthing process (termination of gestation)
Parturition
Brown Swiss Cow
humans: stress level vs sperm
sigmoid flexure
42. 265-285 days
cow ovulation
Follical Stimulating in females
sperm cell
Dairy Cattle Gestation
43. 4-6 days
Mares
functions of progestrone
Sperm survival specs
mare estrus
44. Allows extension of penis without fibro-elastic penis
purpose of Breeding Soundness Exam (BSE) for males
behavioral signs of estrus
sigmoid flexure
colostrum
45. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm
seminiferous tubules
scrotal circumference (BSE)
reason for seasonal breeding periods
burdizzo
46. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.
colostrum
spermatogenesis
butterfat
cremaster muscle
47. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has
ewe's estrous cycle
butterfat
cow estrus
rectal palpation (BSE)
48. Milk is 15% ________ and 85% __________.
organs used in spermatogenesis
Mares
uterus
dry matter and water
49. Parturition is controlled by...
Hormones from both the fetus and the mom.
Parturition
penis sizes vs delivering methods
Mares
50. 2 month growth cycle. stored in the epididymis of the bull
ewe gestation
burdizzo
Sperm growth rate
libido test (BSE)